Russia reinforcing troops in Ukraine

 Yahoo News:

Ukraine’s success on southern front requires Russia to reinforce troops from Crimea

The Russians are forced to redeploy reinforcements to the south from Crimea amid very heavy losses, the Joint Coordination Press Center’s head of the Ukraine’s Southern Defense Forces Nataliya Humenyuk said on national television on Sept. 12.

"They (the Russians — ed.) are now trying to activate their resources from Crimea and are gradually bringing in more troops" to the southern front, where Ukraine’s Armed Forces are continuing counter-battery fighting, while inflicting losses on the occupiers across the Dnipro River. While the enemy continues to maneuver its forces and equipment, redirecting efforts and concentrating them where it hurts the most.

Read also: Ukraine destroys six Russian boats on Dnipro River in Kherson Oblast

Latest on the Ukrainian counteroffensive

The village of Robotyne in Zaporizhzhya Oblast was liberated by the Ukrainian Armed Forces on Aug. 28. Ukrainian troops are now moving towards Novoprokopivka and have been successful near Verbove.
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The Russians are also considering new call-ups inside Russia to deal with their losses in the Ukraine fighting according to the ISW: 

Russian insider sources claimed that the Kremlin’s inner circle is again actively disagreeing about the necessity of and preparations for a second wave of reserve mobilization ahead of the semi-annual fall conscription cycle, which starts on October 1. A Russian Telegram channel with alleged connections to Russian security sources claimed that select Russian officials are “seriously” preparing for a second wave of reserve mobilization and are hoping to conduct another reserve mobilization wave in the fall.[1] It is important to distinguish between Russia’s normal semi-annual conscription callup, a large-scale reserve mobilization like the one that brought more than 300,000 reservists into the Russian armed forces in Fall 2022, crypto-mobilizations that bring reservists into the force at lower numbers over a long period of time, and various efforts to encourage or coerce Russians to sign ostensibly voluntary contracts with the Russian military. The channel claimed that Russian officials want to mobilize between 170,000 to 175,000 reservists and move the fall conscription date from October 1 to November 1 to accommodate a reserve mobilization processes, while simultaneously conducting “contract mobilization” to recruit an additional 130,000 personnel for contract service using coercive measures.[2] The channel claimed that a powerful group of “siloviki hawks” is also proposing stricter reserve mobilization measures such as restricting certain individuals from obtaining mobilization deferrals, which has sparked major disagreements with officials in the Russian Presidential Administration. The channel claimed that the Presidential Administration fears a response to such measures from other Russian officials and broader Russian society.
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While the Kremlin's inner circle may be arguing about how to man their operations in Ukraine, it seems pretty clear that current operations are not going well enough to ignore the need for additional troops.

See, also:

 What weapons can North Korea send to help Russia against Ukraine – interview

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And we must understand that the total number of artillery systems of 21,500 looks quite than high, suggesting a large amount of ammunition that may be at North Korea’s disposal. And this is a huge amount. But another factor is that these stocks are unlikely to have been replenished since 1991 in significant quantities. On paper, an astronomical amount [of ammunition] can really be in their ammunition warehouses.

But the question is how old are they, in what condition are they, or are they in combat condition? This is highly questionable. A few weeks ago, Russian Defense Minister Sergei Shoigu came to Pyongyang on a rather unusual, extended visit. And maybe it was just an inspection trip.
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And:

 Azov takes out five Russian APCs - Video

And:

 Beleaguered Crimean Bridge shut down again to overnight traffic

And:

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And:

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And:

 Ukrainian soldiers hit Russian equipment worth millions of dollars in one night

And:

 Putin: Sending Soviet tanks into Hungary and Czechoslovakia was a mistake

And:

 Ukrainian soldier says new Leopard tanks are better than old Soviet ones because the ammo doesn't explode, kill the crew, and blow the turret off if it takes a hit